Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Show Low, AZ 85901
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Navajo County.
3 active health-based record(s) across possible systems
- Largest possible serving system
- City Of Show Low
- Source water
- Groundwater
- County
- Navajo County
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
Review needed
3 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
10 systems
Serves 17,139 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
City Of Show Low
AZ0409026 · Groundwater · 17,139 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (6)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Jan 1, 2023 to Aug 17, 2022 |
| Pentachlorophenol | Archived | Jan 1, 2022 to Dec 31, 2024 |
| Carbofuran | Archived | Jan 1, 2022 to Dec 31, 2024 |
| OXAMYL | Resolved | Jan 1, 2022 to Dec 31, 2024 |
| Carbofuran | Resolved | Jan 1, 2022 to Dec 31, 2024 |
| Groundwater RuleHealth-based | Resolved | Nov 12, 2021 to Jan 14, 2022 |
Arizona Water Co - Lakeside
AZ0409003 · Groundwater · 12,191 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.0078 mg/L
- Action level
- 0.015 mg/L
52% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Timberland Acres Dwid
AZ0409005 · Groundwater · 922 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.013 mg/L
- Action level
- 0.015 mg/L
87% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (27)
| Rule | Status | Period |
|---|---|---|
| Xylenes, Total | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| DICHLOROMETHANE | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| p-Dichlorobenzene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Vinyl chloride | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,2-Dichloroethane | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,1,1-Trichloroethane | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,2-Dichloropropane | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,1,2-Trichloroethane | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Benzene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Toluene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Styrene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| cis-1,2-Dichloroethylene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| o-Dichlorobenzene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,1-Dichloroethylene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| CHLOROBENZENE | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Carbon tetrachloride | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Ethylbenzene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Tetrachloroethylene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| trans-1,2-Dichloroethylene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Trichloroethylene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| 1,2,4-Trichlorobenzene | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| TTHM | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Lead and Copper Rule | Resolved | Jan 1, 2023 to Sep 8, 2023 |
| Revised Total Coliform Rule | Resolved | Jul 1, 2022 to Aug 15, 2022 |
| Revised Total Coliform Rule | Resolved | Nov 1, 2021 to Dec 28, 2021 |
White Mountain Water Company
AZ0409330 · Groundwater · 475 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (8)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Jan 1, 2025 to Nov 5, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Nov 22, 2024 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Nov 22, 2024 |
| Chlorine | Resolved | Feb 1, 2024 to Feb 29, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2023 to Nov 14, 2023 |
| Consumer Confidence Rule | Resolved | Jul 1, 2023 to May 12, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Chlorine | Resolved | Oct 1, 2022 to Dec 31, 2022 |
Country Lane Trailer Park
AZ0409311 · Groundwater · 450 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (19)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Oct 2, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Public Notice | Unaddressed | Dec 19, 2024 |
| LEAD AND COPPER RULE REVISIONS | Addressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Addressed | Oct 17, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2024 to Oct 24, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2024 |
| Groundwater RuleHealth-based | Resolved | Dec 5, 2023 to Dec 8, 2023 |
| Groundwater RuleHealth-based | Resolved | Dec 5, 2023 to Dec 8, 2023 |
| Groundwater RuleHealth-based | Resolved | Nov 5, 2023 to Nov 4, 2023 |
| Groundwater RuleHealth-based | Resolved | Nov 5, 2023 to Nov 4, 2023 |
| Groundwater RuleHealth-based | Resolved | Nov 5, 2023 to Nov 7, 2023 |
| Groundwater RuleHealth-based | Resolved | Oct 13, 2023 to Dec 13, 2023 |
| Consumer Confidence Rule | Resolved | Oct 2, 2022 to Dec 13, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Nov 1, 2023 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Dec 13, 2023 |
| Consumer Confidence Rule | Resolved | Oct 2, 2021 to Dec 13, 2023 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Dec 13, 2023 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2002 |
Timberline Mhp
AZ0409300 · Groundwater · 350 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.0023 mg/L
- Action level
- 0.015 mg/L
15% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (12)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Resolved | Nov 19, 2025 to Dec 26, 2025 |
| Consumer Confidence Rule | Unaddressed | Oct 2, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2025 |
| Public Notice | Unaddressed | Dec 19, 2024 |
| LEAD AND COPPER RULE REVISIONS | Unaddressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Unaddressed | Oct 17, 2024 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2023 to Jan 31, 2023 |
| TTHM | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | Resolved | Aug 1, 2021 to Jul 31, 2022 |
| TTHM | Resolved | Aug 1, 2021 to Jul 31, 2022 |
Pinedale Estates Dwid
AZ0409040 · Groundwater · 208 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (2)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.005 mg/L
- Action level
- 0.015 mg/L
33% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Selenium
EPA SDWIS reported health-based violation
- Reported level
- 0.34 MG/L
- Maximum contaminant level
- 0.05 MG/L
680% of the listed benchmark
Monitoring period: Jan 1, 2026 to Mar 31, 2026
Violation history (35)
| Rule | Status | Period |
|---|---|---|
| SeleniumHealth-based | Archived | Jan 1, 2026 to Mar 31, 2026 |
| SeleniumHealth-based | Archived | Oct 1, 2025 to Dec 31, 2025 |
| SeleniumHealth-based | Archived | Jul 1, 2025 to Sep 30, 2025 |
| SeleniumHealth-based | Archived | Apr 1, 2025 to Jun 30, 2025 |
| SeleniumHealth-based | Archived | Jan 1, 2025 to Mar 31, 2025 |
| SeleniumHealth-based | Archived | Oct 1, 2024 to Dec 31, 2024 |
| SeleniumHealth-based | Archived | Jul 1, 2024 to Sep 30, 2024 |
| SeleniumHealth-based | Archived | Apr 1, 2024 to Jun 30, 2024 |
| Public Notice | Resolved | Feb 14, 2024 to Jun 3, 2025 |
| SeleniumHealth-based | Archived | Jan 1, 2024 to Mar 31, 2024 |
| SeleniumHealth-based | Archived | Oct 1, 2023 to Dec 31, 2023 |
| SeleniumHealth-based | Archived | Jul 1, 2023 to Sep 30, 2023 |
| SeleniumHealth-based | Archived | Apr 1, 2023 to Jun 30, 2023 |
| SeleniumHealth-based | Archived | Jan 1, 2023 to Mar 31, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| TTHM | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Lead and Copper Rule | Resolved | Jan 1, 2023 to Sep 8, 2023 |
| Public Notice | Resolved | Dec 8, 2022 to Jun 1, 2023 |
| SeleniumHealth-based | Archived | Oct 1, 2022 to Dec 31, 2022 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Nov 23, 2022 |
| Selenium | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| SeleniumHealth-based | Archived | Jul 1, 2022 to Sep 30, 2022 |
| SeleniumHealth-based | Archived | Apr 1, 2022 to Jun 30, 2022 |
| SeleniumHealth-based | Archived | Jan 1, 2022 to Mar 31, 2022 |
| Revised Total Coliform Rule | Resolved | Nov 1, 2021 to Dec 28, 2021 |
| SeleniumHealth-based | Archived | Oct 1, 2021 to Dec 31, 2021 |
| Total Haloacetic Acids (HAA5) | Resolved | Sep 1, 2021 to Aug 31, 2022 |
| TTHM | Resolved | Sep 1, 2021 to Aug 31, 2022 |
| SeleniumHealth-based | Archived | Jul 1, 2021 to Sep 30, 2021 |
| SeleniumHealth-based | Archived | Apr 1, 2021 to Jun 30, 2021 |
| Public Notice | Resolved | Feb 24, 2021 to Jun 10, 2021 |
| SeleniumHealth-based | Archived | Jan 1, 2021 to Mar 31, 2021 |
| Groundwater RuleHealth-based | Unaddressed | Jul 13, 2019 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2002 |
Navajo Water - Laguna Estates
AZ0409000 · Groundwater · 89 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Resolved | Jul 2, 2025 to Dec 29, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Oct 20, 2025 |
Canyon Vista Estates
AZ0409091 · Groundwater · 75 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 9.0e-4 mg/L
- Action level
- 0.015 mg/L
6% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (14)
| Rule | Status | Period |
|---|---|---|
| Revised Total Coliform Rule | Resolved | Feb 1, 2026 to Feb 2, 2026 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2026 |
| Revised Total Coliform Rule | Resolved | Nov 1, 2025 to Nov 30, 2025 |
| Revised Total Coliform Rule | Resolved | Sep 1, 2025 to Sep 30, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Oct 17, 2025 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2025 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2024 to Jan 31, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Oct 16, 2024 |
| Revised Total Coliform Rule | Resolved | Jun 1, 2023 to Jun 30, 2023 |
| Revised Total Coliform Rule | Resolved | Sep 1, 2022 to Nov 30, 2022 |
| Lead and Copper Rule | Resolved | Jul 1, 2022 to Nov 30, 2022 |
| E. COLI | Resolved | May 25, 2022 to Dec 1, 2022 |
| Revised Total Coliform RuleHealth-based | Resolved | May 1, 2022 to Dec 1, 2022 |
| Revised Total Coliform Rule | Resolved | Oct 1, 2021 to Oct 31, 2021 |
Show Low Crossroads Hoa
AZ0401372 · Groundwater · 38 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 7.0e-4 mg/L
- Action level
- 0.015 mg/L
5% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (7)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Jan 1, 2026 to Mar 16, 2026 |
| Public Notice | Unaddressed | Dec 19, 2024 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Jan 13, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Jan 13, 2025 |
| Revised Total Coliform Rule | Resolved | Dec 1, 2021 to Dec 31, 2021 |
| E. COLI | Resolved | May 14, 2021 to Jun 3, 2022 |
| Public Notice | Resolved | Jan 10, 2021 to Mar 1, 2021 |
Hardness meter
What does nearby environmental evidence show?
183
PPM as CaCO₃
Very Hard
PPM
183
GPG
10.7
Regional environmental evidence
USGS hardness classification scale
183 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
183
mg/L as CaCO₃ equivalent
Grains per gallon
10.7
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
2
Nearest site
3.3 mi
Observation range
Jul 31, 2017–Aug 1, 2017
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: A-11-22 15ADB (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 85901 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Show Low median
183 PPM
About the same1 indexed ZIP readings · Range 183–183 PPM
Arizona median
64 PPM
119 PPM higher213 indexed ZIP readings · Range 33–2680 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
An active health-based record is present. Follow the utility's current notice and public-health instructions.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Show Low
Is tap water safe in Show Low?+
EPA ECHO reports 3 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.